Press.



No. 662,863. Patanted Nov. 27, I900. E. HETT.

PRESS.

(Application filed Nov. 20, 1899.)

,(No Model.)

6 Sheets-Sheet I.

TNE hams Pnzns cd, vwomumol WASHINGTON, n. c.

No. 662,863. Patented Nov. 27,1900. E. man.

PRESS.

(Appheation 11196. Nov. 20, l899.v (No Model.) 6 Sheets-Sheet 2 I H x IP l WITNESSES: {E M INVENTOR BY WW ATTORNEYS Patented Nov. 27, I900. E.HETT.

PRESS.

(Application filed Nov. 20, 1899.)

6 Sheets-Sheet 3.

(80 Model.)

Wm WW 6 WITNESSES:

BY J v- WT [0m P atanted Nov. 27, i900.

E. HETT.

PRESS.

Applicahon filed Nov. 3 1899.)

6 Sheets-Sheet 4.

(No Model.)

EZ EZ iii INVENTOR few/WA Mm:

WITNESSES W No. 662,863. Patented Nov. 27, I900. E. HETT.

PRESS.

(A pplication filed Nov. 20, 1899.) (No Model.) 6 Sheets$heet 5|.

INVENTOR BY W KW ATTORNEYS Tu: uoarus Farms cc, PHm'aumo WASHINGTON. o.o)

l Patented Nov. 27, I900. E. HETT.

PRESS.

(Application filed Nov. 20, 1899.)

(No Model.)

6 Sheets-Sheet 6.

INVENTQR BY K K WTTORNEYS ,THE uonms PETERS co. PHOTO-LITHO wAsnmsToN,u. c.

EDWARD HETT, on NEW YORK, N. Y.

PRESS.

SPECIFICATION forming part of Letters Patent No. 662,863, dated November27, 1900.

Application filed November 20, 1899. Serial No. 737,650, (No model.)

To all whom it may concern:

Be it known that I, EDW'ARD HETT, a citizen of the United States, and aresident of New York, (NewDorp) in the county of Richmond and State ofNew York, have invented certain new and useful Improvements in Presses,of which the following is a specificaion.

My invention relates to presses, and especially to means for supportingprinting-forms in presses. Its object is to provide improved means forsupporting printing-forms in printing or transferring or other pressesso arranged and adapted as to permit the insertion of printing-formslaterally directly into,

working position in the press and to permit their removal laterallydirectly therefrom wit hout the'necessity of moving the printingformstoward or away from the impressionsurface after insertion into the pressor before removal therefrom or of dismantling the press; also, toprovide means for holding the printingform rigidly in place when inprinting position to prevent the giving of such printing-forms when insuch position; also, to combine such supporting means for printing-forms with means for exerting pressure between the printing-form andtheimpressionsurface; also, to combine such supporting means in amulticolor-press with suitable guiding means, so as to permit not onlythe removal of the printingforms from the press laterally directly fromtheir working positions in the press, but also their insertion from theside of the press laterally directly into their working positions in thepress to bring the printing-forms into exact and cooperating relationwith one another and with the impression-surface, so as to print inexact and accurate register with one another and.

to do this without experiment or further adjustment than the merelateral insertion described herein.

It consists of the novel devices herein shown and described.

Heretofore in rotary presses, and particularly in multicolor-presses, towhich my invention is peculiarly applicable, it has been necessary inorder to place a printing-form in its working position in the presswithout dismantling the press to move it over its supports into aposition above its working position or one farther removed from theimpression-surface and then to lower or move it into its workingposition, and it has been necessary when removing a printing-form fromits working position in the press to raise it or move it away from theimpression-surface out of its working position in order to clear itssupports before it could be moved laterally out of the press. Thismovement of the printing-form toward or away from the impression-surfaceafter or before the lateral insertion or removal of the printing-forminto or from the press either makes it necessary to leave an open spaceon the outside of the printingpress, within which the inking-rollers orthe damping-rollers cannot be placed, or makes it necessary, if theinking-rollers or damping-rollers are located in part or in whole insaid space, to make them removable therefrom when it is desired toremove or insert a printing-form,'thus complicating the mechanism ofthis part of the press. In such presses the space Within which theinking or damping rollers, or both, can be placed is thus very muchrestricted and the mechanismof the press is rendered more complicated,less manageable, and more difficult to oversee and repair. By myinvention I am enabled to move the printing-forms from the side of thepress laterally directly into working position and to remove them fromworking position directly and laterally out of the press without anymovement toward or away from the impression-surface after or before thelateral insertion or removal of the printingform and without anydismantling of the press. Accordingly the inking-rollers and mechanismand also the damping-rollers and mechanism, where the latter are used,can be placed around the periphery of the printingform at anydesiredposition and may be arranged and mounted in any desired manner.

My improved device is of especial value in m ulticolor-presses wherethere area plurality of printing-forms, and particularly in m ulticolorlithographic presses.

In the drawings accompanying this specification and forming part hereof,and in which similar reference characters represent corresponding parts,I have shown my invention embodied in its preferred form in connectionwith a multicolor lithographic printingpress.

in Fig. 6.

shaft of the printing-form.

Referring now to the drawings, Figure 1 is an elevation of the preferredform of myimproved support for printing-forms. Fig. 2 is a verticalsection taken on the lines A A of Fig. 1 viewed as shown by the arrow-Fig. 3 is a plan of the parts shown in Fig. 1. Fig. 4 is a horizontalsection taken on the lines B B, Fig. 1, viewed as shown by the arrow.Fig. 5 is a vertical section taken on the lines C C of Fig. 1 viewed asshown by the arrow. Fig. 6 is a side view of a multicolor lithographicprinting-press, showing myimproved supportin its preferred form, asshown in Figs. 1 to 5, in position in such press. Fig. 7 is an elevationof a modified form of myin1- proved support with a portion of the clampcut away. Fig. 8 is a side elevation of the parts shown in Fig. 7. Fig.9 is a horizontal section on the line E E of Fig. 7 viewed as shown bythe arrow. Fig. 10 is a vertical section on the lines D D of Fig. 7viewed as shown by the arrow. Fig. 11 is a horizontal section on thelines G G of Fig. 7 viewed as shown by the arrow. Fig. 12 is anelevation of a modified form of my improved support, and Fig. 13 is avertical section of the same on the lines F F of Fig. 12 viewed as shownby the arrow.

Referringnow to the preferred form or embodiment of my improved supportfor printing-forms, (shown in Figs. 1 to 5, inclusive, and shown in Fig.6 in a six-color multicolorpress,) 1 is a printing-form which, as hereshown, is a hollow or tubular cylinder having a shaft 2. Any suitableprinting-form may be used in my improved device, it not being essentialthat the printing-form be hollow or cylindrical or have a continuousprinting-surface. The printing-surface may, if desired, be a hollowshell-like tube, as shown at 3 in Figs. 2 and 13, mounted upon aninteriorformsupport or mandrel 4, as shown in said figures, andremovable from and replaceable upon the form-support. I preferablyemploy curved cylindrical printing-forms having a continuous printingsurface or having a surface adapted to be transformed into a printingsurface. The mandrel 4 may, if desired, be removable from andreplaceable upon shaft 2.

5 is the impression-surface, which, as here shown, is an impression-drumaround the periphery of which are circumferentially arranged a series ofprinting-forms l, as shown however, may be used. As shown in Fig. 1,

the support for the printing-form consists of a frame 6, provided withtwo bearing-arms 7 7, the latter being adapted to be moved toward oraway from each other by means presently to be described and adapted whenbrought together to form a hearing for the For this purpose the twobearing-arms have at their center each a semicylindrical opening 8 8.When the bearing-arms are brought together, these two semicylindricalopenings form a cylindrical opening for the shaft 2 and its bushing Anysuitable impression-surface,

move with frame 6.

9. WVhen the bearing-arms are separated suf ficiently, they will clearthe periphery of the printing-form 1, permitting the printing-form orits form-support, or both, to be moved in a lateral direction directlyout from its working position in the press or permitting the same oranother printing-form or its formsupport to be inserted from the side ofthe press laterally and directly into working position in the press.

For the sake of conciseness and clearness the term lateral movement isused in this specification and in the claims to indicate a movement ofthe printing-form or its formsupport from the side of the press inwardparallel with the impression-surface or with the line of the axis of theprinting-form or movement in the reverse direction. The term workingposition of the printing-form will be used in the specification andclaims herein to indicate the regular position of the printing-form inthe press either when the press is in operation or at rest, in theformer case the printing-form being, ofcourse, down upon theimpression-surface in its printing position and when at rest being moveda slight distance away from the impression-surface. Both of thesepositions, however, are included in the term working position.

Frame 6 is preferably supported upon pres-.

sure-bar 10. This pressure-bar is secured to the frame in the ordinaryway by means of nuts 11 upon the screw-threaded upper end ofpressure-bar 10, thus permitting a regulation of the pressure to suit.The pressurebar and through it the frame 6 are moved up and down tobring the printing-form into printing position or to move it away fromthe impression-surface into its position of rest by any suitable means.As shown in Fig. 6, pressure-bars 10 are preferably moved from 'acommoncenter, so that all will have the same movement. The particular meansfor moving the pressure-bars, however, form no part of the presentinvention and are not shown in detail and will not be further described.I

Bearing-arms 7 7 may be moved toward or away from each other byanysuitable means. As shown in Figs. 1 to 5, these means consist of tworods 12 12, screw-threaded, as shown, with the screw-threads upon eachhalf of-each rod running in the reverse direction. Nuts 13, forming partof bearing-arms 7 at the ends of each bearing-arm, surround thescrewthreaded rods 12 12 and engage with said rods. Rods 12 are rotated,in the form shown in the drawings, by a gear-wheel 14: on each rodmeshing with a large common gear-wheel 15, placed between gear-wheels 14and mounted on the same shaft as worm-wheel 16. A worm 17 on shaft 18meshes with worm-wheel 16 and is rotated by hand-wheel 19. Preferablythe hand-wheel 19 and gear-wheel 15 and their connecting mechanism aremounted upon the framework of the press and do not In order to permitgearwheels 1-1 to mesh at all times with gear 15, no matter what theposition of frame 6, I make gear-wheel 15 very broad. This enablesgear-wheels 14 as they rise and fall with frame 6 to slide in the teethof gearwheel15 and always keep in mesh with it. By turning hand-wheel 19rods 12 are rotated, thus causing bearing-arms 7 to separate from eachother when hand-wheel 19 is turned in one direction and to approach eachother when hand-wheel19 is turned in the reverse direction.

By the use of the worm 17 worm-wheel 16 and bearing-arms 7 are locked inany position into which they are moved. Any suitable device maybeemployed for locking them in position: but I prefer to use a worm andworm-wheel, as described.

It will be noted that my said imoroved support for printing-form has inthe form shown in Figs. 1 to 5 a portionnamely, the bearing-arms7rem'ovable from the path of the printing-form or its formsupport whenthe latter is removed laterally from the press or is inserted from theside of the press into working position therein to permit theprinting-form or its form-support to be inserted laterally directly intoworking position in the press or to be removed laterally directly therefrom. In my device it is accordingly unnecessary when a printing-form orits formsupport is being removed from working position in the press tofirst raise it or move it away from the impressionsurface in order toclear its supports and then to remove it laterally, and it is alsounnecessary when a printing-form or its form-support is to be insertedinto working position in the press to move it first laterally into aposition above its working position in the press, but farther removedfrom the impression-surface than is its working position in order toclear the supports, and then to move it toward the impressionsurface tobring it into working position. It will also be noted that the insertionand removal of printing-forms require no dismantling of the press or anypart thereof; also, that by means of my improvement printing forms canbe moved out of working position in the press and they or other similarprinting-forms can be moved into working position and be placed in exactpredetermined position in the press wi hout any empiric adjustment bysimply moving the said removable portion of the support back to itsoriginal position.

My improved device above described furnishes means both for supportingthe printing-form and for controlling the pressure between it and theimpressionsurface, while at the same time having a portion of saidsupporting and pressure means permanently cured to the said supportingand pressure means, but movable thereon, so as to be removable from thepath of the printing-form as it is moved laterally and directlyinto orout of working position in the press. They also furnish means forlocking the support in its supporting position.

My improved support may be used at both ends or at one end only of theshaft of the printing-form. In practice itis necessary to use it only atone end, the other end being supported in any suitable manner by anysuitable form of support.

It is important in a press, especially where heavy printing pressure isemployed, to hold the printing-forn'i rigidly in place when in printingposition and to prevent the printingform from giving way in suchposition either in the direction of the axis of the printingform or inany direction transverse to the axis. In theembodimentof my device shownin Figs. 1 to 5 I have shown means for preventing such giving. Anysuitable means may be employed for this purpose; but I prefer to use forthis purpose the device shown in said figures, which will now bedescribed.

These means consist of stops, against which the frame is adapted tobear. The stops consist of a part 20 of the framework of the press,which act both as guides andas stops'to prevent the giving of theprinting-form, as above set forth. These stops are shaped, preferably,as shown in Fig. 1, a part 21 of the frame 6 extending on .both sides ofthe stops and the frame itself at both of its sides snugly fitting theface of the stops 20, as shown in Fig. 4. Bearing-arms 7 have grooves ateach side, into which takes a guide 22 of frame 6. By the above means agiving of the printingform or its bearing-arms in the direction of theaxis of the printing-form or in a direction transverse to that axis iseffectually pre vented.

Where the printing-form is a hollow shelllike tube mounted upon aninterior form-sup port or mandrel, as shown in the drawings, Ipreferably remove the printing-tube or its forln-snpport in thefollowing manner: In the end of shaft 2 of the printing-form Ipreferably arrange a cylindrical socket 23, into which a pin 2-1.- of areceiving-shaft 25 is adapted to take to lock the shaft .2 of theprinting-form to and in line with the separate receivingshaft 25 when itis desired to remove the printing-form or mandrel or to insert anotherin its place. The separate receivingshaft 2 may be mounted and arrangedin any suitable way. As this mounting and arrangement form no part of myinvention, they are not shown in detail and will not befurtherdescribed. In practice shaft 25 is brought in line with the endof shaft 2 of the printing tube when it is desired to remove the latterfrom the press, pin 2% of the receiving-shaft is slipped into socket 2 3of the shaft 2 of the printing-form, bearing-arms 7 are then sermrated,(the end of the printingform and its mandrel being supported by thereceiving-shaft and the printing-tubc or the printingtnbe and itsmandrel are then slid laterally out of their working position in thepress along receiving-shaft 25. Shaft 25 and IIO shaft 2 are thendisconnected, and the receiv-. ing-shaft and its printing-tube areremoved. When it is desired to insert a printing-tube or mandrel, orboth, into the press, the same operation reversed takes place.

Where the printingform is not a shell mounted upon a supporting-axis,mandrel, or form-support, but is, for example, a solid cylinder, thereceiving-shaft will not then, of course, be used. In that case theprintingform will be slid out laterally by any suitable means, as byhand. I

In Fig. 6 I have shown my improved support in its preferred form mountedin a sixcolor lithographic press. In this press, 26 is the paper web onwhich the impressions are made. 27 represents theinledistributingrollers and their connecting mechanism, and 28 the frameof the press. Any suitable damping mechanism may be employed.

My improved device is especially valuable in a multicolor lithographicpress, as it en-' ables the inking mechanism and the damping mechanismto be placed at any point upon the periphery of the printing-forms, andthese can be arranged in any suitable manner and. may occupy as muchexternal space around the printing-forms as may be desired, inasmuch asthe insertion or removal of the printing-forms does not at all interferewith the surrounding dampingandinkingmechanisms of the printing-forms.

In Figs. 7 to 11, inclusive, I have shown a modification of my improvedsupport for printing-forms. In this case the bearing arms 7 7 instead ofbeing movable directly toward or away from each other are pivoted at oneend, as at 29, in a slide 30, moving in guides 31 in the framework ofthe press, and are adapted to be moved apart by swinging upon said pivotaway from one another. When they are swung together, they support shaft2 of the printing-form in the same man ner as above described inreference to the device shown in .Fig. 1. The printing-form is movedinto and out of printing position and the pressure is regulated throughpressurebar 10, mounted on eccentric 32. This eccentric can be rotatedby any suitable means.

When bearing-arms 7 7 in the form shown in Fig. 7 are brought togetherto support the printingform, they are locked in their supportingposition and are held from springing in the line of the axisof theprinting-form or transversely thereto by means of a swinging stop 33.This stop is mounted upon a short shaft 34, which is rotated fromhand-wheel 35 through shaft 36, worm 37, and worm-wheel 38 upon shaft34. Stop 33 has at its middle portion, at one side, a recess 39, whichextends part way through the stop. This recess fits over the ends ofbearing-arms 7 7 when they are brought together and when the stop isrotated downward into the position shown in Fig. 7. Preferably the sidesand the ends of bearing-arms 7 7 are beveled, as shown in Figs. 9 and11, and in that case the correceases sponding sides of recess 39 in stop33 are similarly beveled. The object of the bevel is to furnish a closeand exact fit when stop 33 is turned down over the ends of bearing-arms7 7. In Fig. 11 the stop is shown in its open position and in Fig. 7 inits closed or locking position. When in its locking position, stop 33holds bearing-arms 7 7 in their supporting position and also effectuallyprevents any tendency of the bearing-arms of the printingform to springeither in the line of the axis of the printing-form or transverselythereto.

In Figs. 12 and 13 I have shown still another modification of myimproved support. In this case I connect to the outer end ofpressure-bar 10 a hinged piece 40, hinged in the forks 41 ofpressure-bar 10. The upper end of piece 40 is adapted to take into anopening 42 of box 43, carrying one end of the shaft of thepi'intingform. The outer end of piece 40 is screw-threaded and isprovided with nuts 44 for purposes of adjustment and for securing piece40 to the lips 45 of box 43. When it is desired to remove or insert aprinting-tube, upper nut 44 is unscrewed slightly, piece 40 is swungdownward out of the way of theprinting-tube, and the latter is removedor inserted laterally directly into or out of working position in thepress in the manner already described. Pressure-bar lOand piece 40 thusconstitute means both for supporting the printing-form and forcontrolling the pressure between it and the impressionsurface, suchmeans having a removable portionnamely, the piece 40to permit of theinsertion or removal of the printing-form directly into or out ofworking position in the press.

In order to prevent giving of the printingform in a horizontaldirection, in the device shown in Figs. 12 and 13 I provide side stops46 46, which, as shown, consist of arms having their inner ends 47adapted to bear against surfaces 48 of box 43. Arms 46 at their otherend are provided with a loop 49, encircling eccentrics 50. By turningeccentrics 50, as by handle 51, bars 46 can be moved toward or away fromsurfaces 48. When the printing form is in working position in the press,

arms 46 are moved inward until their ends bear against surfaces 48, thusrigidly holding the printing-form from springing horizontally. Surfaces48 are made of sufficient width to permit of the movement of theprinting-form from printing position to its position of rest withoutinterfering with the contact of the faces 46 and 48 together.

Where printing-forms are used removable from and replaceable upon theirmandrels or shafts,I preferably use preestablished guides, withreference to which the printing-form may be seated on the mandrel orshaft in accurate predetermined position both longitudinally andtransversely, and where printingforms are used in a multicolor-press Ipreferably use guiding'means with reference to which the printing-formsmay be brought in accurate predetermined relationship with thecooperating parls of the press for the purpose of register. Thepreestablished guides for seating the tubular printing-forms upon theirmandrels in the form of device shown in Figs. 1 to 5 consist of a rib 52at one end of the mandrel 5, against which the tubular printing-surface3 is made to snugly fit to seat the same in accurate predeterminedposition longitudinally on the shaft or mandrel, and a rib 53,projecting inward in thetubular printing-shell, adapted to take into 2.corresponding recess in mandrel to seat the tube in accuratepredetermined position on the formsupport and shaft transversely orcircu lll ferentially. Where cylindrical printingzforms are employed,this transverse adjustment is also a circumferential one. The guidingmeans for bringing the different printingforms in a multicolor-pressinto accurate predetermined relationshipwith the cooperating parts ofthe press consist, as shown, of a marked tooth 54 on a gear-wheel 55,keyed to shaft 2. By means of such marked tooth the differentprinting-forms of a multicolorpress may he brought into accuratepredetermined relationship with the cooperating parts of the press forthe purpose of register. Other suitable guiding means than those shownmay be employed.

When m y improved printing-forms are used in a multicolor-press, theprinting-forms are made, preferably, of a predetermined size and shape,so as to properly cooperate with one another in obtaining register forthe purpose of making them interchangeable, removable, and replaceablein the same or in different positions in the press.

By making the movable portion of the support a permanent part of thesupport or permanently secured thereto it can be moved outof itssupporting position for the insertion or removal of a printing-form andcan then be moved back again into its exact and accurately-predeterminedsupporting position without empiric adjustment, so that the printingforms are always supported in exact and accuratelypredeterminedpositions in the press Without individual or empiric adjustment.

The term printing-forms as used in the specification and claims hereinis notlimited to forms with printing-surfaces, but is used to includenot only such forms, but also forms with surfaces adapted to betransformed into printing-surfaces and forms to which printing-surfacesof any suitable kind and character are applied in any way or are adaptedto be applied. The shape and form of the printing-form or of itsprinting-surface may be varied to suit the requirements of theparticular case. Many modifications in other respects in the devicesshown in the drawings may be made without departing from my in \entionand many of the parts shown herein may be omitted or other partssubstituted therefor without departing from my invention, the essentialsof which are set forth in the claims herein. 7

The removal and insertion of the printingforms from or into theirworking positions in the press are by means of myinvention done directlyand easily and withontinterferingin any way with the arrangement of theinking mechanism or the dampening mechanism, if any, surrounding orexterior to the printingforms and without any dismantling of the press,exact and accurate register of the printing-forms in a multicolor-pressis obtained at once and Without experiment or empiric adjustment, theconstruction of the press, especially of a multicolor-press, is greatlysiinplifiedand the mechanism is made more efficient, is more easily andeffectively arranged, is easier of access, and better control of thesame is obtained, and all giving of the printing-forms either in linewith the axis of the printing-forms or in any direction transversethereto is effectually prevented. My improved devices, moreover, do notinterfere in any way with obtaining or regu lating' pressure between theprinting-forms and the,impression-surface.

What I claim as new, and desire to secure by Letters Patent, is

1. In a press a support for a printing-form or its mandrel havingaportion permanently secu red to the said support but movable thereon soas to be removable from the path of the printing-form or its mandrel,when the latter is removed laterally from the press or is inserted fromthe side of the press into working position therein, to permit theprinting'form or its mandrel or both to be inserted laterally intoworking position in the press or to be removed laterally therefromwithout dismantling the press.

2. In a press the combination of a printingform, an impression-surface,a support for a printing-form having a portion permanently secured tothe said support but movable thereon so as to be removable from the pathof the printing-form, when the latter is removed laterally from thepress or is inserted from the side of the press into working positiontherein, to permit the printingform to be inserted laterally intoworking position in the press or to be removed laterally therefromwithout dismantling the press, and means for exerting pressure betweenthe printing-form and the impression-smface.

3,. In a press the combination of a printingform, an impression-surface,and means for supporting the printing-form and for controlling thepressure between it and the impression-surface, a portion of saidsupporting or pressure means being permanently secured to the saidsupport but movable thereon so as to be removable from the path of theprintingform, when the latter is removed laterally from the press or isinserted from the side of the press into working position therein, topermit the printing-form to be inserted laterally into working positionin the press or to be removed laterally therefrom without dismantlingthe press. I

4. In a press the combination of a printingform, an impression-surface,and means both forsupporting the printing-form and for controlling thepressure between it and the impression-surface, a portion of saidsupporting and pressure means being permanently secured to the saidsupport but movable thereon so as to be removable from the path of theprinting-form, when the latter is removed laterally from the press or isinserted from the side of the press into working position therein, topermit the printing-form to be inserted laterally into working positionin. the press or to be removed laterally therefrom without dismantlingthe press.

5. In a press a support for a printing-form or its mandrel having aportion permanently secured to the said support but movable thereon soas to be removable from the path of the printingform or mandrel, whenthe latter is removed laterally from the press or is inserted from theside of the press into working position therein, to permit theprinting-form or mandrel or both to be inserted laterally into workingposition in the press or to be removed laterally therefrom withoutdismantling the press, and means for locking the support in itssupporting position.

6. Ina press a support for a printing-form or its mandrel having aportion removable from the path of the printing-form or mandrel, whenthe latteris removed laterally from the press or is inserted from theside of the press into Working position therein, to permit theprinting-form or mandrel to be inserted laterally into working positionin the press or to be removed laterally therefrom, and means for holdingthe printing-form rigidly in place when in printing position forpreventing the giving of the form while in such position.

7. In a press a support for a printing-form or its mandrel having aportion removable from the path of the printing-form or mandrel,when thelatteris removed laterally from the press or is inserted from the sideof the press into working position therein, to permit the printing-formor mandrel to be inserted laterally into working position in the pressor to be removed laterally therefrom, and means for holding theprinting-form rigidly in place when in printing position for preventingthe giving of the form while in such position in the direction of theaxis of the printing-form. v

8. In a press a support for a printing-form having a portion removablefrom the path of the printingform, when the latter is removed laterallyfrom the press or is inserted from the side of the press into workingposition therein, to permit the printing-form to be inserted laterallyinto working position in the press or to be removed laterally therefrom,and means for holding the printingform rigidly in place when in printingposition for preventing the giving of the form while in such position ina direction transverse to the axis of the printing-forn'i.

9. In a press a support for a printing-form having a portion removablefrom the path of the printingform, when the latter is re moved laterallyfrom the press or is inserted from the side of the press into Workingposi tion therein, to permit the printing-form to be insertedlaterally-into working position in the press or to be removed laterallytherefrom, and a stop, for holding the printingform rigidly in placewhen in printing position for preventing the giving of the form while insuch position in the direction of the axis of the printing-form.

10. In a press a support fora printing-form havinga portion removablefrom the path of the printing form, when the latter is removed laterallyfrom the press or is inserted from the side of the press into workingposition therein, to permit the printing-form to be inserted laterallyinto working position in the press or to be removed laterally therefrom,and a stop, for holding the printingform rigidly in place when inprinting position for preventing the giving of the form while in suchposition in a direction transverse to the axis of the printing-form.

11. In a press a frame for carrying a printing-form or mandrel havingtwo bearing-arms adapted to move toward or away from each other andadapted,when brought together to form a bearing for the shaft of theprint-ingform or mandrel, and, when separated, to permit the lateralremoval or insertion of the printing-form or mandrel from or into thepress, and means for moving said arms toward oraway from each other.

12. In a press the combination of an impression-surface, aprinting-form, a frame for carrying the printing-form having twobearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprinting-form, and, when separated, to permit the lateral removalorinsertion of the printing-form from or into the press, means formoving said arms toward or away from each other and means for moving theframe to move the printing-form into or out of printing position and toregulate the pressure.

13. In apressaframe for carryinga printingform or mandrel having twobearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprintingform or mandrel, and, when separated, to permit the lateralremoval orinsertion of the printing-form or mandrel from or into thepress, means for moving said arms toward or away from each other, andmeans for looking the bearing-arms in their supporting position.

14. In a press the combination of an impressionsurface, a printing-form,a frame for carrying the printing-form having two bearing-arms adaptedto move toward or away IIO from each other and adapted, when broughttogether, to form a hearing for the shaft of the printing-form, and,When separated, to per mit the lateral removal or insertion of theprinting-form from or into the press, means for moving said arms towardor away from each other, means for locking the hearing arms in theirsupporting position, and means for moving the frame to move theprintingform into or out of printing position and to regulate thepressure.

15. In a press a frame for carrying a printing-form or mandrel havingtwo hearing-arms adapted to move toward or away from each other andadapted, when brought together, to form a hearing for the shaft of theprintingform or mandrel, and, when separated, to permit the lateralremoval orinsertion of the printing-form or mandrel from or into thepress, means for moving said arms toward or away from each otherandmeans for holding the printing-form rigidly in place when in printingposition for preventing the giving of the form while in such position.

16. In a press the combination of an impression-surface, aprinting-form, a frame for carrying the printing-form having twobearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a hearing for the shaft of theprinting-form, and, when separated, to permit the lateral removalorinsertion of the printing-form from or into the press, means formoving said arms toward or away from each other, means for locking thehearingarms in their supporting position, a stop, upon which the frameis adapted to slide and with which it engages, to hold the printingformrigidly in place when in printing posit-ion for preventing the giving ofthe form while in such position in adirection parallel with the axis ofthe printing-form or transverse thereto, and means for moving the framealong the stop to move the printing'form into or out of printingposition and to regulate the pressure.

17. In a press a frame for carrying a printing-form having twohearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a hearing for the shaft of theprinting-form and, when separated to permit the lateral removal orinsertion of the printing-form from or into the press, two rodsoppositely screwthreaded at their opposite ends, nuts con nected withthe hearing-arms and engaging with said rods, the nuts of one armengaging with one set of the screw-threaded ends of-said rods and thenuts of the other arm engaging with the oppositely-screw-threaded endsof said rods and means for rotating the said rods to move the said armstoward or away adapted, when brought together, to form a hearing for theshaft of the printing-form and, when separated, to permit the lateralremoval or insertion of the printing-twin from or into the press, tworods oppositely screwthreaded at their opposite ends, nuts connectedwith the hearing-arms and engaging with said rods, the nuts of one armengaging with one set of the screw-threaded ends of said rods and thenuts of the other arm engaging with the oppositely-screw-threaded endsof said rods and means for rotating the said rods to move the said armstoward or away from each other, said means including a worm andworm-wheel, whereby the said arms will be locked in their supportingposition.

19. In a press a frame for carrying a printing-form having twohearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprinting-form and, when separated, to permit the lateral removal orinsertion of the printing-form from or into the press, two rodsoppositely screwthreaded at their opposite ends, nuts connected with thehearing-arms and engaging with said rods, the nuts of one arm engagingwith one set of the screw-threaded ends of said rods and the nuts of theother arm engaging with the oppositely-screw-threaded ends of said rods,a gear upon each of said rods, a common gear-wheel arranged between thesaid gear-wheels mounted upon the rods and meshing therewith, and meansfor driving said common gear-wheel, the said means including a worm andworm-wheel, wherehy the two hearingarms may be moved toward or away fromeach other and the said arms will be locked in their supportingposition.

20. In a press a frame for carrying a printing-form having twohearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprinting-form and, when separated, to permit the lateral removal orinsertion of the printing-form from or into the press, two rodsoppositely screwthreaded at their opposite ends, nuts connected with thebearingarms and engaging with said rods, the nuts of one arm engagingwith one set of the screw-threaded ends of said rods and the nuts of theother arm engaging w'ith the oppositely-screw-threaded ends of saidrods, a gear on each rod, a common gearwheel mounted upon the frameworkof the press between the said two gear-wheels and adapted to mesh witheach, said common gear-wheel having its teeth wide enough to permit themovement of the gears, as the frame moves to carry the printing-forminto or out of printing position, without interfering with the meshingof the said gear-wheels with one another, means mounted upon theframework of the press for driving said common gear-wheel, the saidmeans including a worm and worm-wheel, whereby the two bear- IIO ingarmsmaybe moved toward or away from each other and the said arms will belocked in their supporting position and the frame may be moved withoutinterfering with the means for moving the bearing-arms.

21. In a press a frame for carrying a printing-form having twobearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprinting-form and, when separated, to perm it the lateral removal orinsertion of the printing-form from or into the press, two rodsoppositely screw-threaded at their opposite en ds,nuts connected withthe bearing-arms and engaging withsaid rods, the nuts of one armengaging with one set of the screw-threaded ends of said rods and thenuts of the other arm engaging with the oppositely-sorew-threaded endsof said rods, a gear on each rod,a common gear-wheel m ounted upon theframework of the press between the said two gear-wheels and adapted tomesh with each, said common gear-wheel having its teeth Wide enough topermit the movement of the gears, as the frame moves to carry theprinting-form into or out of printing position, without interfering withthe meshing of the said gear-wheels with one another, means mounted uponthe framework of the press for driving said common gear-wheel, the saidmeans including a worm and worm-wheel, whereby the two bearing-arms maybe moved toward or away from each other and the said armswill be lockedin their supporting position and the frame may be moved withoutinterfering with the means for moving the bearing-arms, a stop, uponwhich the frame is adapted to slide and with which it engages, to holdthe printing-form rigidly in place when in printing position forpreventing the giving of the form While in such position in a directionparallel with the axis of the printing-form or transverse thereto, andmeans for moving the frame along the stop to move the printing-form intoor out of printing position and to regulate the pressure.

22. In a press a support for a curved printing-form having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the printing-form, when the latter is removedlaterally from the press or is inserted from the side of the press intoWorking position there in, to permit the printiugform to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press.

23. In a press the combination of a curved printing-form, animpressioirsurface, a support for a printing-form having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the printing-form, when the latter is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-form to be insertedlaterally into working position in the press or to he removed laterallytherefrom without dismantling the press, and means for exerting pressurebetween the printing-form and the impression-surface.

24. In a press a support for a curved printing-form having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the printing-form, when the latter is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printingform to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press, and means for locking thesupport in its supporting position.

25. In a press a support for a curved printing-form having a portionremovable from the path of the printing-form, when the latter is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-form to be insertedlaterally into working position in the press or to be removed laterallytherefrom, and means for holding the printing-form rigidly in place whenin printing position for preventing the giving of the form while in suchposition.

26. In a press the combination of an impression-surface, a curvedprinting-form, a frame for carrying the printing-form having twobearing-arms adapted to move toward or away from each other and adapted,when brought together, to form a bearing for the shaft of theprinting-form and, when separated, to permit the lateral removal orinsertion of the printing-form from or into the press, means for movingsaid arms toward or away from each other, means for locking thebearing-arms in their supporting position, and meansfor moving the frameto move the printing-form into or out of printing position and toregulate the pressure.

27. In a press a support for a printing-cylinder having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the printing-cylinder, when the latter isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit .the printing-cylinder tobe inserted laterally into working position in the press or to beremoved laterally therefrom without dismantling the press.

28. In a press the combination of a printingcylinder, animpression-surface, a support for a printing-cylinder having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the printing-cylinder, when the latter isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit the printing-cylinder tobe inserted laterally into working position in the press or to beremoved laterally therefrom without dismantling the press, and means forexerting pressure between IIO ceases the printing-cylinder andtheimpression-surface.

29. In a press a support for a printing-cylinder having a portionpermanently secured tothe said support but movable thereon so as to beremovable from the path of the printingcylinder, when the latter isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit the printingcylinder tohe inserted laterally into working position in the press or to beremoved laterally therefrom without dismantling the press, and means forlocking the support in its supporting; position.

30. In a press a support for a printing-cylinder having a portionremovable from the path of the printing-cylinder, when the latter isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit the printingcylinder tobe inserted laterallyinto Working position in the press or to be removedlaterally therefrom, and means for holding the printing-cylinder rigidlyin place when in printing position for preventing the giving of thecylinder while in such position.

31. In a press the combination with a tubular printing-form and amandrel therefor, the tubular printing-form being removable from andreplaceable on the mandrel, of a support for the mandrel and tubularprinting-form having a portion permanently secured to the said supportbut movable thereon so as to be removable from the path of the tubularprinting-form, when the latter is removed laterally off from the mandrelin the press or is inserted from the side of the press onto the mandreland into working position in the press, to permit the tubularprinting-form to be inserted laterally into working position in thepress or to he removed laterally therefrom without dismantling thepress.

32. In a press the combination with a tubular printing-form and amandrel therefor, the tubular printing-form being removable from andreplaceable on the mandrel, of a support for the mandrel and tubularprinting-form having a portion removable from the path of the tubularprinting-form, when the latter is removed laterally off from the mandrelin the press or is inserted from the side of the press onto the mandreland into working position in the press, to permit the tubularprintingform to be inserted laterally into working position in the pressor to be removed laterally therefrom, means for locking the support inits supporting position and means for holding the printing-form rigidlyin place when in printing position for preventing the giving of the formwhile in such position.

33. In a press the combination of a shaft, 'a hollow mandrel adapted tofit thereon and removable therefrom and replaceable thereon,

a hollow tubular printing-form adapted to fit upon the mandrel in thepress and removable therefrom and replaceable thereon, and a support forthe shaft, mandrel and tubular printing-form having a portionpermanently s c cured to the said support but movable thereon so as tobe removable from the path of the tubular printing-form or thehollowmandrel when the form or the mandrel or both are removed laterally fromthe press or are inserted from the side of the press into workingposition therein, to permit the printing-form to be inserted laterallyinto working position in the press or to be removed laterally therefromwithout dismantling the press.

34. In a press the combination of ashaft, a hollow mandrel adapted tofit thereon and removable therefrom andrepIaceable thereon, a hollowtubular printing-form adapted to fit ,upon the mandrel in the press andremovable therefrom and replaceable thereon, and asupport for the shaft,mandrel and tubular printing-form having a portion removable from thepath of the tubular printing-form or the hollow mandrel when the form orthe mandrel or both are removed laterally from the press or are insertedfrom the side of the press into working position therein, to permit theprinting-form to be inserted laterally into working position in thepress or to be removed laterally therefrom, means for locking thesupport in its supporting position and means for holding theprinting-form rigidly in place when in printing position for preventingthe giving of the form While in such position.

35. In a multicolor-press the combination of a series ofprinting-forms,a support foreach printing-form,having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the said printing-form when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press.

36. In a multicolor-press the combination of a series ofprinting-forms,asupport for each printing-form, having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the said printing-form, when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press and means for locking eachsupport in its supporting position.

37. In a multicolor-press the combination of a series ofprinting-forms,a support for each printing-form, having a portionremovable from the path of the said printing-form, when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printingforms to be insertedlaterally into working position in the press or to be removed laterallytherefrom, and means for holding the printing-form rigidlyin place whenin printing position for preventing the giving of the form while in suchposition.

38. In a multicolor-press the combination of suitableimpression-surface, a series of printing-forms, a frame for carryingeach printing form having two bearing arms adapted to move toward oraway from each other and adapted, when brought together to form abearing for the shaft of the said printing-form and, when separated, topermit the lateral removal or insertion of the saidprinting-form from orinto the press, means for moving said arms toward or away from eachother, means for locking the bearing-arms in their supporting positions,and means for moving each frame to move its corresponding printing-forminto or out of printing position and to regulate the pressure betweenthe said printing-form and its impression-surface.

39. In a multicolor-printing press the combination of animpression-drum, a series of printing forms arranged circumferentiallyaround the drum, a support for each printing-form having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the said printing-form, when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press, and means for exerting pressurebetween the printii'ig-fo'rms and the impression-drum.

-4:0. In a multicolor-printing press the combination of animpression-drum, a series of printingforms arranged circumferentiallyaround the drum, a support for each printing-form having a portionpermanently secured to the said support but movable thereon so as to beremovable from the path of the said printing-form, when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom without dismantling the press, means for locking each supportin its supporting position, and means for exerting pressure between theprintingforms and the impression-drum.

41. In a multicolor-printing press the combination of animpression-drum, a series of printing forms arranged circumferentiallyaround the drum, a support for each printing-form having a portionremovable from the path of the said printing-form, when itis removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom, means for holding the printing-forms rigidly in place when inprinting position for preventing the giving of the forms while in suchposition and means for exerting pressure between the printing-forms andthe impression-drum.

42. In a multicolor-press the combination of an impression-drum, aseries of printingforms arranged circumferentially around the drum, aframe for carrying each printingform having two bearing-arms adapted tomove toward or away from each other and adapted, when brought together,to form a bearing for the shaft of the said printing-form and, whenseparated, to permit the lateral removal or insertion of saidprinting-form from or into the press, means for movingsaid arms towardor away from each other, means for locking the bearing-arms in theirsupporting positions, and means for moving the frames to move theprinting-forms into or out of printing position and to regulate thepressure between the printing-forms and the impressiondrum.

43. In a multicolor-press the combination of a series of tubularprinting-forms, a mandrel for each printing-form, the tubularprinting-forms being removable from and replaceable upon the mandrels,and a support for each mandrel and tubular printing-form having aportion permanently secured to the said support but movable thereon soas to be removable from the path of the tubular printing-form, when thelatter is removed laterally off from the mandrel in the press or isinserted from the side of the press directly onto the mandrel and intoworking position in the press, to permit the tubular printing-forms tobe inserted laterally directly into working position in the press or tobe removed laterally directly therefrom without dismantling the press.

44. I11 a multicolor-press the combination of a series of tubularprinting-forms, a man- (1 rel for each printing-form, the tubularprinting-forms being removable from and replaceable upon the mandrels,and a supportfor each mandrel and tubular printing-form having a portionpermanently secured to the said support but movable thereon so as to bere movable-from the path of the printing-form, when the latter isremoved laterally off from the mandrel in the press or is inserted fromthe side of the press directly onto the mandrel and into workingposition in the press, to permit the tubular printing-forms to beinserted laterally directly into working position in the press or to beremoved laterally directly therefrom without dismantling the press, andmeans for locking each support in its supporting position.

45. In a multicolor-press the combination of a series of tubularprinting-forms, a mandrel for each printing-form, the tubularprinting-forms being removable from and replaceable upon the mandrels,and a support for each mandrel and tubular printing-form having aportion removable from the path of the tubular printing-form, when thelatter is removed laterally oif from the mandrel in the press or isinserted from the side of the press directly onto the mandrel and intoworking position in the press, to permit the tubular printing-forms tobe inserted laterally directly into working position in the press or tobe removed laterally directly therefrom and means for holdingtheprinting-forms rigidly in place when in printing position for preventingthe giving of the forms while in such position.

46. In a m ulticolor-press the combination of an impression-drum, aseries of tubular printingforms arranged circumferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, a frame for carryingeach prin tin g-form having two bearing-arms adapted to move toward oraway from each other and adapted, when brought together to form abearing for the shaft of the said printing-form and,when separated, topermit the lateral removal or insertion of the said printing-form fromor into the press, means for moving said arms toward or away from eachother, means for locking the bearing-arms in their supporting positions,and means for moving each frame to move its corresponding printing-forminto or out of printing position and to regulate the pressure betweenthe said printing-form and the impression-drum.

47. In a multicolor-press the combination of an impression -drum, aseries of tubular printing-forms arranged circulnferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, a support for eachmandrel and tubular printing-form having a portion permanently securedto the said support but movable thereon so as to be removable from thepath of the tubular printing-form, when the latter is removed laterallyoff from the mandrel in the press or is inserted from the side of thepress laterally and directly onto the mandrel and into working positionin the press, to permit the printing-forms to be inserted laterallydirectly into working position in the press or to be removed laterallydirectly therefrom Without dismantling the press, and means for exertingpressure between the printing-forms and the impressiondrum.

48. In a muiticolor-press the combination of an impression-drum, aseries of tubular printing forms arranged circumferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, a support for eachmandrel and tubular printing-form having a portion permanently securedto the said support but movable thereon so as to be removable from thepath of the tubular printing-form, when the latter is removed laterallyoff from the mandrel in the press or is inserted from the side of thepress directly onto the mandrel and into working position in the press,to permit the tubular printing-forms to be inserted laterally directlyinto working position in the press or to be removed laterally directlytherefrom without dismantling the press, means for locking each supportin its supporting position, and means for exerting pressure between theprinting-forms and the impressiondrum.

49. In a multicolor-press the combination of an impression-drum, aseries of tubular printing forms arranged circumferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, a support for eachmandrel and tubular printing-form having a portion permanently securedto the said support but movable thereon so as to be removable from thepath of the tubular printing-form, when the latter is removed laterallyoff from the mandrel in the press or is inserted from the side of thepress directly onto the mandrel and into working position in the press,to permit the tubular printing-forms to be inserted laterally directlyinto working position in the press or to be removed directly there fromwithout dismantling the press, means for preventing the springing orgiving of the printing forms when in printing position and means forexerting pressure between the printing-forms and the impression-drum.

50. In a multicolor-press the combination of an impression-surface, aseries of printingforms, a support for each printing-form having aportion removable from the path of the said printing-form, when it isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit the printing-forms to beinserted laterally into working position in the press or to be removedlaterally therefrom, and preestablished guides by means of which theprintingform may be seated in the press in accurate predeterminedposition both longitudinally and transversely and may be brought intoaccurate relationship with cooperating parts of the press for thepurpose of register.

51. In a multicolor-press the combination of an impression-surface, aseries of printingforms, a support for each printing-form having aportion removable from the path of the said printing-form, when it isremoved laterally from the press or is inserted from the side of thepress into working position therein, to permit the printing-forms to beinserted laterally into working position in the press or to be removedtherefrom, and means for holding the printing-forms rigidly in placewhen in printing position for preventing the giving of the forms whilein such position, and preestablished guides by means of which theprinting-forms may be seated in the press in accurate predeterminedposition both longitudinally and transversely and may be brought IIOinto accurate relationship with cooperating parts of the press for thepurpose of register.

52. In a multicolor-press the combination of an impression-surface, aseries of printingforms, a support for each printing-form, a frame forcarrying each printing-form having two bearing-arms adapted to movetoward or away from each other and adapted, when brought together toform a bearing for the shaft of the said printing-form and, whenseparated, to permit the lateral removal or insertion of the saidprinting-form from or into the press, means for moving said arms towardor away from each other, means for locking the bearing-arms in theirsupporting positions, and means for moving each frame to move itscorresponding printing-form into or out of printing position and toregulate the pressure between the said printing-form and itsimpressionsurface, and prestablished guides by means of which theprinting-forms may be seated in the press in accurate predeterminedposition both longitudinally and transversely and may be brought intoaccurate relationship with cooperating parts of the press for thepurpose of register.

53. In a multicolor-press the combination of an impression-drum, aseries of printingforms arranged circumferentially around the drum, asupport for each printing-form having a portion removable from the pathof the said printing-form, when it is removed laterally from the pressor is inserted from the side of the press into working position therein,

to permit the printing-forms to be inserted laterally into workingposition in the press or to be removed laterally therefrom, and meansfor exerting pressure between the printingforms and the impression-d rumand preostablished guides by means of which the printingforms may beseated in the press in accurate predetermined position bothlongitudinally and transversely and may be brought into accuraterelationship with cooperating parts of the press for the purpose ofregister.

54. In a multicolor-printing press the combination of animpression-drum, a series of printingforms arranged circumferentiallyaround the drum, a support for each printing-form having a portionremovable from the path of the said printing-form, when itis removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom, means for locking each support in its supporting position,and means for exerting pressure between the printing-forms and theimpression-drum and prestablished guides by means of which theprinting-forms may be seated in the press in accurate predeterminedposition both longitudinally and transversely and may be brought intoaccurate relationship with cooperating parts of the press for thepurpose of register.

55. In a multicolor-printing press the combination of animpression-drum, a series of printing-forms arranged circumferentiallyaround the drum, a support for each printing-form having a portionremovable from the path of the said printing-form, when it is removedlaterally from the press or is inserted from the side of the press intoworking position therein, to permit the printing-forms to be insertedlaterally into working position in the press or to be removed laterallytherefrom, means for holding the printing-forms rigidly in place when inprinting position for preventing the giving of the forms while in suchposition and means for exerting pressure between the printing-forms andthe impression-drum and prestablished guides by means of which theprinting-forms may be seated in the press in accurate predeterminedposition both longitudinally and transversely and may be brought intoaccurate relationship with cooperating parts of the press for thepurpose of register.

56. In a multicolor-press the combination of an impression-drum, aseriesof tubular printing-forms arranged circumferentially around the drum, amandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, preostablished guideswith reference to which the tubular printing-forms may be seated ontheir mandrels in accurate predetermined position both longitudinallyand circumferentially, a support for each mandrel and tubularprinting-form having a portion removable from the path of the tubularprinting-form when the latter is removed laterally off from the mandrelin the press or is inserted from the side of the press laterally anddirectly onto the mandrel and into working position in the press,topermit the printin g-forms to be inserted laterally directly intoworking position in the press or to be removed laterally directlytherefrom, means for exerting pressure between the printing-forms andthe impression-drum and guiding means with reference to which thetubular printingforms may be brought into accurate predeterminedrelationship with the cooperating parts of the press for the purpose ofregister.

57. In a multicolor-press the combination of an impression-drum, aseries of tubular printing forms arranged ciroumferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, preestablished guideswith reference to which the tubular printing-forms may be seated ontheir mandrels in accurate predetermined position both longitudinallyand circumferentially, a support for each mandrel and tubularprinting-form having a portion removable from the path of the tubularprinting-form, when the latter is removed laterally off from the mandrelin the press oris inserted from the side of the press directly onto themandrel and into Working position in the press, to permit the tubularprintingforms to be inserted laterally directly into working position inthe press or to be removed laterally directly therefrom, means forlocking each support in its supporting position, means for exertingpressure between the printing-forms and the impression-drum and guidingmeans with reference to which the tubular printing-forms may be broughtinto accurate predetermined relationship with the cooperating parts ofthe press for the purpose of register.

58. In a multicolor-press the combination of an impression-drum, aseries of tubular print-ingforms arranged circumferentially around thedrum, a mandrel for each printing-form, the tubular printing-forms beingremovable from and replaceable upon the mandrels, preestablished guideswith reference to which the tubular printing-forms may be seated ontheir mandrels in accurate predetermined position both longitudinallyand circumferentially, a support for each mandrel. and tubularprinting-form having a portion removable from the path of the tubularprinting-form, when the latter is removed latv erally off from themandrel in the press or is inserted from the side of the press directlyonto the mandrel and into working position in the press, to permit thetubular printingforms to be inserted laterally directly into Workingposition in the press or to be removed directly therefrom, means forholding the printing-forms rigidly in place when in printing positionfor preventing the giving of the forms while in such position means forexerting pressure between the printing-forms and the impression-drum andguiding means with reference to which the tubular printingtorms may bebrought into accurate predetermined relationship with the codperatingpart of the press for the purpose of register.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EDWARD HETT.

Witnesses:

EDWIN SEGER, Geo. W. MILLs, Jr.

